That is a good question and may have a complicated answer. If the officer suspected drugs, then it is entirely proper for them to insist upon a blood test as a breath test would not show drugs. However, if drugs were not suspected, you may have a defensible issue in your case that you should discuss with an experienced DUI attorney. During COVID local agencies stopped issuing breath tests due to transmission concerns. However, this has caused a substantial motions issue that needs to be investigated in your case.