Kevin Hart -- Starstruck Bus Driver Says ... Selfie Ruined My Life

Kevin Hart's soaring popularity got a bus driver suspended ... but she's telling us her passengers were on board with her getting off board to shoot a selfie with her favorite star.

Genesha Bradley-Douglas was driving an LAX shuttle bus last week when she eyeballed Kevin outside one of

She's now on indefinite suspension without pay. But she has an interesting defense. There was only one family on board, and papa bear was as starstruck as her.

So we gotta ask ...