Hello Irene: Two things....
1.) I had the experience of trying on wedding dresses in SoCal (suburban Los Angeles to be specific). I was well treated and I only tried on one dress, not because of not wanting to bother the salespeople but because I had a wig "malfunction" in the dressing room that made me decide that it would be easier to come back another time in my natural (long) hair for ease of trying on dresses. All the staff were very nice and polite and one particular sales assoc. was really friendly and invited us to come back on a weekday when they would be less busy and they could devote more time and help to us. I was not made to feel like a problem or rushed in any way; I simply decided on my own to cut it short because of my wig issues.
2.) I highly recommend going to a salon/spa for a makeup application. I have not gone to a makeup counter; I've only gone to salons to have it done. It is great because you get more privacy and no pressure to buy a lot of products. I have had terrific service buying makeup at stores; I just have not had any makeovers done there.
Best of luck to you.