I have never seen an SAT score on a resume and I have looked at a few thousand. Maybe I just don't remember, but I don't think so. I find it odd that you would highlight a test from high school.
Trying to process this and I don't think its "bad" but it is definitely odd. To me it is a slight step up from telling me you won a school spelling bee. Again it isn't bad, it's just odd. I'm not even sure most people would know how to interpret an SAT score...
But to your question, seeing an SAT score and then no GPA or mention of honors in college would beg me to think about your grades. I often looked at new hire entry level position applicant's grades/transcripts. If I saw no mention of SAT score and a good job track record I probably wouldn't bother. Just seeing the SAT score and not the grades... send me your transcripts.
Your resume should be focusing on how your past jobs will interpret in you being a good fit for this job. Or showing a skill set that meets the job. Unless your job is answering a bunch of high school level multiple choice questions, I would just leave it out.