I had a most exasperating experience in the ''Kiss and Ride'' lot of the West Falls Church Metro Station. My son had called, as he does each evening, to say he had arrived, and I drove over to pick him up, as I do each evening. He was waiting at the curb. I stopped, he got in the car, and a Metro policeman promptly pulled me over.

After asking to see my driver's license and registration, he warned me that if I ever stopped like that again to pick up a passenger I would be issued a $35 ticket. When I asked him where I had permission to pick up a passenger, he pointed to all the parking spaces in the lot. I pointed out to him that most are metered spaces, and he told me to ignore the meters!

I should add that I was only one of many people who were picking up passengers waiting at the curb who were also pulled over by the Metro policeman, which caused a backup all the way to the end of the parking lot.

Until very recently there was a loading and drop off space at the curb outside the entrance to the station. It has now been designated a taxi stand, with warning signs that no one else may use that space. When issuing his warning, the policeman pointed to another sign, which says ''No Stopping.'' It would make more sense if it said ''No Standing'' or ''No Waiting.'' Why should taxi drivers take precedence over Metro passengers, the people who keep Metro alive? After all, it is the passengers who are inconvenienced, not their ''chauffeurs.'' However, it is the ''chauffeurs'' who will be fined.

Why can't the first few parking spaces be designated as taxi spaces? A Metro passenger who desires their service could hail the first in line and the driver could then pull out and pick up his fare, just as other people pick up their passengers, and be on his way.

In order for people to get to any parked cars in the West Falls Church station, they must walk around, between or behind the waiting taxis, which not incidentally block the ramp for the handicapped. Why does Metro provide elevators and other conveniences for the handicapped and wheel chair users, and then allow this type of situation to occur? -- Wilma E. Hurley